Amphenol ICC 55508-044 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55508-044 is a 44-position receptacle connector with 0.079" (2.00mm) pitch, designed for surface mount board-to-board applications. This part operates across the -55°C to 125°C temperature range with a 2A current rating and 200V voltage rating. The 55508-044 is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Active alternatives from both Amphenol ICC and Samtec Inc. provide direct functional equivalence with enhanced compliance and availability.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	44
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Termination	Solder
Fastening Type	Push-Pull
Operating Temperature	-55°C ~ 125°C
Current Rating	2A
Voltage Rating	200V
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters: connector type (receptacle), contact type (female socket), number of positions (44), mating pitch (0.079" / 2.00mm), number of rows (2), row spacing (0.079" / 2.00mm), mounting type (surface mount), termination method (solder), fastening type (push-pull), operating temperature range (-55°C ~ 125°C), material flammability rating (UL94 V-0), and moisture sensitivity level (MSL 1).

The 55508-044LF from Amphenol ICC is a direct equivalent with identical electrical and mechanical specifications, differing only in product status (active vs. obsolete) and RoHS compliance (compliant vs. non-compliant).

Samtec Inc. CLT series parts (CLT-122-02-F-D and variants) provide functional equivalence with the same core parameters. Variations within the CLT series include connector style options (standard vs. bottom entry), board guide features, pick-and-place compatibility, and packaging formats (tube vs. tape & reel). These variations do not affect core electrical or mechanical compatibility with mating connectors designed for the 0.079" pitch, 44-position, 2-row configuration.

Parameter Comparison

Parameter	55508-044	55508-044LF	CLT-122-02-F-D	CLT-122-02-F-D-A	CLT-122-02-F-D-BE	CLT-122-02-F-D-BE-A	CLT-122-02-F-D-BE-A-K	CLT-122-02-F-D-BE-A-K-TR	CLT-122-02-F-D-BE-A-P-TR	CLT-122-02-F-D-BE-A-TR
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket
Number of Positions	44	44	44	44	44	44	44	44	44	44
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2	2	2	2	2	2	2	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Insulation Material	Plastic	Plastic	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Current Rating	2A	2A	4.1A per Contact	4.1A per Contact	4.1A per Contact	4.1A per Contact	4.1A per Contact	4.1A per Contact	4.1A per Contact	4.1A per Contact

Engineering Selection Recommendations

The 55508-044LF from Amphenol ICC is the primary direct substitute for the obsolete 55508-044. Both parts share identical electrical and mechanical specifications with matching pitch, position count, row configuration, and operating temperature range. The 55508-044LF carries active product status and RoHS compliance, addressing the obsolescence of the original part while maintaining full compatibility with existing mating connectors and PCB layouts.

Samtec Inc. CLT-122 series receptacles provide functional equivalence across all critical mating parameters. The CLT series offers higher current capacity (4.1A per contact vs. 2A) and uses Liquid Crystal Polymer insulation material instead of standard plastic. All CLT variants maintain the same 0.079" pitch, 44-position, 2-row configuration and push-pull fastening mechanism. CLT parts carry ROHS3 compliance and active product status.

Within the CLT series, selection depends on application-specific requirements: standard CLT-122-02-F-D for basic applications, CLT-122-02-F-D-A with board guide for improved alignment, CLT-122-02-F-D-BE variants for bottom entry configurations, and CLT-122-02-F-D-BE-A-K-TR or CLT-122-02-F-D-BE-A-P-TR for automated assembly with tape & reel packaging.

Frequently Asked Questions (FAQ)

Q: Can the 55508-044LF directly replace the 55508-044 in existing designs?

A: Yes. The 55508-044LF maintains identical electrical and mechanical specifications including pitch, position count, row spacing, operating temperature range, and fastening mechanism. Existing mating connectors and PCB layouts require no modification.

Q: What is the primary difference between the 55508-044LF and CLT-122 series parts?

A: Both provide functional equivalence for mating purposes. The CLT-122 series offers higher current capacity (4.1A per contact vs. 2A) and uses Liquid Crystal Polymer insulation. Mating compatibility is maintained across all variants due to identical pitch and position configuration.

Q: Are CLT-122-02-F-D and CLT-122-02-F-D-BE interchangeable?

A: Both maintain identical mating pitch, position count, and row spacing. The primary difference is connector style: standard top entry vs. bottom entry. Selection depends on PCB layout and assembly requirements. Mating compatibility with standard 0.079" pitch, 44-position connectors is preserved in both configurations.

Q: What packaging options are available for high-volume production?

A: Amphenol ICC 55508-044LF is supplied in tube packaging. Samtec CLT-122-02-F-D-BE-A-K-TR and CLT-122-02-F-D-BE-A-P-TR are supplied in tape & reel format, suitable for automated pick-and-place assembly. Tape & reel variants include board guide and pick-and-place features.

Q: Do all substitute parts meet the same compliance requirements?

A: The 55508-044 is RoHS non-compliant. The 55508-044LF is RoHS compliant. All Samtec CLT-122 variants are ROHS3 compliant. All parts maintain UL94 V-0 flammability rating and MSL 1 moisture sensitivity level. Compliance requirements for your application determine the appropriate selection.

Q: What is the difference between CLT-122-02-F-D-BE-A-K-TR and CLT-122-02-F-D-BE-A-P-TR?

A: Both are bottom entry receptacles with board guide in tape & reel packaging. CLT-122-02-F-D-BE-A-K-TR includes pick-and-place features. CLT-122-02-F-D-BE-A-P-TR includes both board guide and pick-and-place features. Selection depends on assembly equipment capabilities and production requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message